243311201323 has 2 divisors, whose sum is σ = 243311201324. Its totient is φ = 243311201322.

The previous prime is 243311201321. The next prime is 243311201351. The reversal of 243311201323 is 323102113342.

243311201323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243311201323 - 2¹ = 243311201321 is a prime.

Together with 243311201321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (243311201321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121655600661 + 121655600662.

It is an arithmetic number, because the mean of its divisors is an integer number (121655600662).

Almost surely, 2^243311201323 is an apocalyptic number.

243311201323 is a deficient number, since it is larger than the sum of its proper divisors (1).

243311201323 is an equidigital number, since it uses as much as digits as its factorization.

243311201323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243311201323 its reverse (323102113342), we get a palindrome (566413314665).

The spelling of 243311201323 in words is "two hundred forty-three billion, three hundred eleven million, two hundred one thousand, three hundred twenty-three".